Which STP protocols do AR series routers support

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AR series routers support Spanning Tree Protocol (STP), Rapid Spanning Tree Protocol (RSTP), and Multiple Spanning Tree Protocol (MSTP).

Other related questions:
Which STP protocols does an AR router support
An AR router supports STP/RSTP/MSTP, but does not support VBST.

Which multicast protocols do AR series routers support
In earlier versions of V200R005C00, Huawei AR series routers support the following multicast protocols: - MSDP - PIM-SM - PIM-DM - IGMP - IGMP snooping and MLD snooping Note: AR150&AR200 series routers and AR1200 series routers do not support IGMP snooping or MLD snooping. In V200R005C00 and later versions, Huawei AR series routers support the following multicast protocols: MSDP - PIM-SM - PIM-SM (IPv6) - PIM-DM - PIM-DM (IPv6) - IGMP - MLD - IGMP snooping and MLD snooping Note: AR150&AR200 series routers and AR1200 series routers do not support IGMP snooping or MLD snooping.

Which encapsulation protocols do AR series routers support
AR series routers support AAL5 logical link control (LLC)/sub-network attachment point (SNAP), and Virtual Circuit Multiplexing (VC-MUX).

Which multicast protocols do Huawei AR series enterprise routers support
In versions earlier than V200R005C00, the Huawei AR Series Enterprise Routers support the following multicast protocols: -Multicast Source Discovery Protocol (MSDP) -Protocol independent multicast sparse mode (PIM-SM) -Protocol independent multicast dense mode (PIM-DM) -Internet Group Management Protocol (IGMP) -IGMP Snooping and MLD Snooping NOTE: AR150&AR200 series routers and AR1200 series routers do not support IGMP Snooping and MLD Snooping. In V200R005C00 and later versions, the Huawei AR Series Enterprise Routers support the following multicast protocols: -Multicast Source Discovery Protocol (MSDP) -Protocol independent multicast sparse mode (PIM-SM) -Protocol independent multicast sparse mode (PIM-SM) for IPv6 -Protocol independent multicast dense mode (PIM-DM) -Protocol independent multicast dense mode (PIM-DM) for IPv6 -Internet Group Management Protocol (IGMP) -Multicast Listener Discovery (MLD) -IGMP Snooping and MLD Snooping NOTE: AR120&AR150&AR160&AR200&AR500 series routers, AR510 series routers and AR1200 series routers do not support IGMP Snooping and MLD Snooping.

Which protocols does the ASPF firewall of an AR router support
The ASPF firewall of an AR router supports the following protocols: - File Transfer Protocol (FTP) - Hyper Text Transport Protocol (HTTP) - Internet Control Message Protocol (ICMP) - Session Initiation Protocol (SIP) - Real Time Streaming Protocol (RTSP) - Transmission Control Protocol (TCP) - Trivial File Transfer Protocol (TFTP) - User Datagram Protocol (UDP)

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